Air circulator



FIG. 1 is a perspective view of an air circulator showing my new design;

FIG. 2 is a right side elevational view thereof, the left side being a mirror image of the right side shown;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof.

The broken line representation of a corner of a room in FIG. 1 is for purposes of illustration only. 

The ornamental design for an air circulator, as shown and described. 